Ensure the compiler doesn't reorder things before calling the sampler

2021-10-18 11:28:43 +11:00
parent 785030df96
commit c7e426655d
1 changed files with 2 additions and 0 deletions
--- a/embassy-nrf/src/saadc.rs
+++ b/embassy-nrf/src/saadc.rs
@ -316,6 +316,8 @@ impl<'d, const N: usize> Saadc<'d, N> {
            WAKER.register(cx.waker());

            if r.events_end.read().bits() != 0 {
+                compiler_fence(Ordering::SeqCst);
+
                r.events_end.reset();
                r.intenset.write(|w| w.end().set());